Taxon Report

Eriastrum virgatum (Benth.) Mason

virgate eriastrum

Print Report

Taxon Summary

Eriastrum virgatum, commonly known as virgate eriastrum, is a annual herb in the Polemoniaceae that is found only in California. It occurs within Chaparral, Coastal bluff scrub, Coastal dunes, and Coastal scrub, growing at elevations from 45 to 700 meters. Eriastrum virgatum is ranked 4.3, Plants of Limited Distribution, A Watch List; Not very threatened in California.

Classification


Scientific Name:	Eriastrum virgatum (Benth.) Mason
Common Name:	virgate eriastrum
Family:	Polemoniaceae
Element Code:	PDPLM030D0
USDA Plants Symbol:	ERVI2
Synonyms/Other Names:

Ecology and Life History


Lifeform:	annual herb
Blooming Period: May-Jul	May-Jul
Elevation:	45-700 (150-2295)
General Habitats:	Chaparral, Coastal bluff scrub, Coastal dunes, Coastal scrub
Microhabitat:	Sandy
Microhabitat Details:

Conservation Status


CA Rare Plant Rank:	4.3
Global Rank:	G3
State Rank:	S3
State List:	None
Fed List:	None
Other Status:	SB_SBBG
CRPR Changes:

Occurrence Data from the CNDDB


Total Occurrences:	0
Element Occurrence Ranks:
Excellent (A)	0
Good (B)	0
Fair (C)	0
Poor (D)	0
None (X)	0
Unknown (U)	0

Location


California Endemic: True
California Counties and Islands: Name (Code)
Monterey (MNT), San Benito (SBT)
Quads: Name (Quad Code)
Bickmore Canyon (3612152), Carmel Valley (3612146), Chews Ridge (3612135), Cholame Valley (3512073), Chualar (3612155), Gonzales (3612154), Hollister (3612174), Marina (3612167), Monterey (3612158), Mount Johnson (3612153), North Chalone Peak (3612142), Paicines (3612163), Paraiso Springs (3612133), Prunedale (3612176), Rana Creek (3612145), Salinas (3612166), San Juan Bautista (3612175), Seaside (3612157), Soledad (3612143), Spreckels (3612156), Sycamore Flat (3612134)

Threat List Data from the CNDDB


Threat List Total:	0
EOs with Threat Listed:	Total EOs	% of EOs
	0	0 %

Notes



Threatened by competition, grazing, and development.
Threats:

Taxonomy:

Selected References

Citation California Native Plant Society, Rare Plant Program. 2025. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 30 January 2025].